Flood protection system Wittenberge - BT-Spannschloss® and RubberElast®
The high water table posed a special challenge in Wittenberge. This problem was overcome with a combination of BT-Spannschloss® and RubberElast® for a flood protection wall.
In 2012, an approximately 1,500-metre-long flood protection wall was built in Wittenberge, Brandenburg, to protect an industrial area. The test was not long in coming when the levels of the Elbe’s tributaries rose rapidly again the following year. The flood protection wall fulfilled its purpose and the flood protection system remained intact, as expected.
BT flood protection system
The patented flood protection system consists of a dry connection for precast concrete elements (solid flood protection walls), the BT-Spannschloss® and the RubberElast® squeeze tape seal. During assembly, the RubberElast® is glued to the component. The application is done by light pressing without primer or other preparatory work. After removing the protective strip, the adjacent component is placed. The BT turnbuckle is used to connect and align it, strongly compressing the sealing tape. The resulting component joint is thus permanently sealed against water penetration. No joint grouting is necessary with a BT-Spannschloss® joint. This means that the structure can be loaded immediately after bolting. In addition, the installation can also take place at low temperatures or in precipitation without any problems. The RubberElast® sealing tape can also be installed in adverse weather conditions down to -10°C. With this convenient flood protection system, up to 50 metres of flood protection walls can be erected in just one day. The advantages of this prefabricated construction are obvious: weather-independent prefabrication, rapid assembly and visual design options.
Learn more about this project here.